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Deterioration, death and the evolution of reproductive restraint in late life
TLDR
It is predicted that under broad conditions it will be optimal for organisms to invest less in reproduction as they age, thus challenging traditional interpretations of age-related traits and renewing debate about the extent to which observed life histories are shaped by constraint versus adaptation.
The coevolution of choosiness and cooperation
TLDR
This model uses evolutionary simulations to show that, in a situation where individuals have the opportunity to engage in repeated pairwise interactions, the equilibrium degree of cooperativeness depends critically on the amount of behavioural variation that is being maintained in the population by processes such as mutation.
FAITHFUL WITHOUT CARE: THE EVOLUTION OF MONOGYNY
TLDR
Using a mathematical model, it is shown that monogyny as a means of increasing paternity is favored when the sex ratio is male biased, but not necessarily by high search costs.
Safer sex with feeding females: sexual conflict in a cannibalistic spider
Mating strategies are to a large degree shaped by conflicts between the sexes, causing a rapid antagonistic coevolution of traits involved in reproduction. The view that sexual cannibalism represents
Coevolution of parental investment and sexually selected traits drives sex-role divergence
Sex-role evolution theory attempts to explain the origin and direction of male–female differences. A fundamental question is why anisogamy, the difference in gamete size that defines the sexes, has
Sperm Allocation Strategies and Female Resistance: A Unifying Perspective
TLDR
It is shown that female resistance, while being highly relevant to the predicted relationship between ejaculate size and the degree of sperm competition, has little effect on the predicted positive correlation between relative testis size and, therefore, one of the central predictions of sperm Competition theory is strengthened.
Historical biogeography of Western Palaearctic pelobatid and pelodytid frogs: a molecular phylogenetic perspective
TLDR
A garbage pickup tool includes a handle having a threaded tubular neck and a circular groove, a C-shaped retainer ring fitted within the circular groove and another end pivotally connected with a slider which is sleeved over the needle rod, whereby various kinds of garbage can be easily picked up the garbage pickup clamp.
Is the Evolution of Inaccurate Mimicry a Result of Selection by a Suite of Predators? A Case Study Using Myrmecomorphic Spiders
TLDR
It was found that model-specialized (ant-eating) predators captured mimics significantly less frequently than their ant models, because mimics changed their behavior by fleeing predatory attacks.
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